While it hasn't been upgraded with a higher resolution display or support a wide colour gamut like the latest iPhones, the improvement has to do with brightness. (canadianbusiness.com)
It offers good colour gamut, contrast and viewing angles. (indianexpress.com)
It's brighter than before, has a wider colour gamut, and in the time we've been using it that's certainly been proven true. (pocket-lint.com)